 How To Get To 1800 lbs, How to Lighten My Racecar |
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| motorvated |
 Aug 4 2020, 06:35 PM
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#1
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Member  Group: Members Posts: 280 Joined: 13-February 13 From: Colorado Member No.: 15,519 Region Association: Rocky Mountains  |
Just put in my fresh 2.0 liter motor, replacing my stock 1.8 liter and it is definitely a much stronger motor and my lap times have gone down. I’m still a little slower than I would like to be, but driver skill aside, I’m wondering how best to shave some weight from the car. It already has fiberglass Chalon fenders and bumpers on it, but stock hood, trunk, and door skins. One racing seat, no top, fake Fuchs, header exhaust, fuel cell, 6-point cage. Don’t know what it weighs right now, but I’m sure it’s not anywhere near 1800 lbs. So where do people find the weight savings? My door panels don’t weigh very much, and I can remove them and the door glass too. I prefer to keep the stock windshield but could remove the rear window if that would help aerodynamically but that may be unsafe from a fire spread perspective. Could remove headlight assemblies and install fiberglass hood and trunk. I usually run without the engine cover. Any thoughts on this?
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| campbellcj |
Aug 23 2020, 06:54 AM
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#2
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I can't Re Member Group: Members Posts: 4,545 Joined: 26-December 02 From: Agoura, CA Member No.: 21 Region Association: Southern California 
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As @mepstein 's list shows, the frunk/trunk lids are one of the biggest changes you can make plus that weight is up high. Totally worth it if in the budget. FWIW the lightest my car (-6) has been in full track-race trim is about 1945 which is with (heavy) 10-pt welded cage, full fire system, 2 seats+harnesses... The tub is intact, actually reinforced vs cut/lightened.
Definitely keep current and future applications for the car in mind - it would be super easy to do things to it for autox for example that wouldn't fly for track use and/or be road-legal. Once you start cutting and welding metal, it's way harder to go back! |
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| mepstein |
Aug 23 2020, 07:50 AM
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#3
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914-6 GT in waiting Group: Members Posts: 19,277 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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QUOTE(campbellcj @ Aug 23 2020, 08:54 AM)  As @mepstein 's list shows, the frunk/trunk lids are one of the biggest changes you can make plus that weight is up high. Totally worth it if in the budget. FWIW the lightest my car (-6) has been in full track-race trim is about 1945 which is with (heavy) 10-pt welded cage, full fire system, 2 seats+harnesses... The tub is intact, actually reinforced vs cut/lightened. Definitely keep current and future applications for the car in mind - it would be super easy to do things to it for autox for example that wouldn't fly for track use and/or be road-legal. Once you start cutting and welding metal, it's way harder to go back! Only thing I'd like to add is my numbers are off the cuff. Actual weights are +/-. I was bored while waiting at an airport when I made the list. |
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Posts in this topic
motorvated How To Get To 1800 lbs Aug 4 2020, 06:35 PM
mepstein Estimated
10 - Firewall pad
10 - floor tar
60 - ... Aug 4 2020, 07:41 PM 914 Ranch When I was thinking about making it lighter I boug... Aug 5 2020, 06:45 PM 914 Ranch My car would weigh in at about 1750 with a cage, w... Aug 5 2020, 06:57 PM URY914 Mine. :D
Aug 5 2020, 07:12 PM infraredcalvin Driver? I know I could stand to lose 15lbs or so.... Aug 5 2020, 08:39 PM 914 Ranch Paul's car shows something about a spot that I... Aug 5 2020, 11:51 PM
URY914
Paul's car shows something about a spot that ... Aug 6 2020, 07:04 PM stownsen914 I probably missed it in the list, but doors on lat... Aug 23 2020, 01:52 PM Racer Is this an AX car or a "race car" or a D... Aug 26 2020, 12:33 PM motorvated It’s the car in the avatar, a ‘72 now with a W... Aug 26 2020, 05:10 PM Racer Bumpers are heavy.. especially those rear bumperet... Aug 27 2020, 05:24 AM |
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